Gas & Fuel第 66 / 110 题
During a gas pressure test, appliances and their regulators must be protected. What is the correct way to include or exclude appliances during a 10 psi test?
a.Leave appliances connected to save time
b.Isolate or disconnect appliances and their regulators, which are not rated for the test pressure
c.Test only with the pilot lit
d.Open all appliance valves fully
解析
Appliance regulators and controls are not rated for elevated test pressures, so appliances must be isolated by closing the individual appliance shutoff and disconnecting the appliance, or valving it off, before the piping is pressurized. Testing through an appliance can rupture its regulator diaphragm. Only the fixed piping is subjected to the test pressure.
法律依据: IFGC §406.0免费刷完整 110 道题库 — 无需注册。
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